Mesoclimas de roquedales de la Sierra de la Ventana

Authors

  • María Julia Kristensen LISEA, Facultad de Ciencias Naturales y Museo, Facultad de Ciencias Agrarias y Forestales, Universidad Nacional de La Plata, Paseo del Bosque s/n, 1900 La Plata, Argentina
  • Jorge Luis Frangi LISEA, Facultad de Ciencias Naturales y Museo, Facultad de Ciencias Agrarias y Forestales, Universidad Nacional de La Plata, Paseo del Bosque s/n, 1900 La Plata, Argentina

Abstract

We deal with the recognition of local climates -mesoclimates- between selected rock outcrops habitats at Sierra de la Ventana (38o00'-38°10' S, 61o45’a 62o08' W), Argentina. We compared five sites with different elevation, slope and aspect, between 550 to 1100m así. Simultaneous hourly data were registered during selected days in every season. Light intensity (IL), air and soil temperatures and air evaporative capacity were measured. We calculated relative humidity (HR), atmospheric vapor pressure saturation deficit (DS) and an illumination index. Principal Component Analysis (PCA) was applied for seasonal and annual comparison ofsites on variables. Five mesoclimates were recognized. We concluded that aspect, altitude, slope, horizon effect and rock outcrops physical properties, influence the local expression of climatic variables. Mesoclimatic conditions in the sites, and the similarity between them, changed .seasonally. The greatest dissimilarity was found between the shady and cooler group of sites with S-SW aspect and the group of sunny sites in summits, and N-NE aspect. The last sites showed

References

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Published

1996-12-01

How to Cite

Kristensen, M. J., & Frangi, J. L. (1996). Mesoclimas de roquedales de la Sierra de la Ventana. Ecología Austral, 6(2), 115–122. Retrieved from https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/1655

Issue

Vol. 6 No. 2 (1996)

Section

Articles

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